Question

Petals form a boat-shaped structure in papilionaceous corolla are ________

• A. One anterior
• B. One posterior
• C. Two anterior
• D. Two lateral

Answer 1

Answer: (C)

Two anterior

Papilionaceous corolla has five free petals which resemble the butterfly. The posterior superior petal is larger than the others, two anterior inferior petals are more or less united forming a boat-shaped structure and are called carina or keel, two lateral petals called wings are present.

So, the correct answer is 'Two anterior'.